clang assertion failure+coredump in clang 3.4.1

Building some out-of-tree software with a rather long set of compiler 
flags, I can reliably get our clang to crash.
The system is current as of r267362 (June 11), with clang reporting itself 
as FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 
20140512
Target: x86_64-unknown-freebsd11.0
(freefall's clang crashes as well.)

Unfortunately, I don't have debug symbols around for that clang binary.
If someone does have a clang with debug symbols handy, I'd be interested 
in seeing the backtrace.

The processed source file and invocation shell script may be found at:
http://web.mit.edu/kaduk/Public/clang/dumptool-09e584.c    (1.1M)
http://web.mit.edu/kaduk/Public/clang/dumptool-09e584.sh


Thanks,

Ben